title: [Investigations of the aetiology of respiratory symptoms in broilers (author's transl)].
mesh_terms: D000818:Animals; D001419:Bacteria / Q000302:isolation & purification; D002645:Chickens; D005860:Germany, West; D011201:Poultry Diseases / Q000209:etiology*; D012141:Respiratory Tract Infections / Q000209:etiology / Q000662:veterinary*; D014780:Viruses / Q000302:isolation & purification
vernacular_title: Untersuchungen über die Ursachen respiratorischer Symptome bei Broilern.